Hi all!
I'm opening a new topic 'cause I'm asking for a different thing. Sorry if I'm going to be annoying :-)

I'm running a GeForce 7100GS, with Gentoo Linux 2.6.20-r8.

I tried a lot of xorg configurations, but the only costant thing I get while starting X is this part written in Xorg.0.log:

Code:

(II) NV(0): Monitor0: Using hsync range of 28.00-33.00 kHz
(II) NV(0): Monitor0: Using vrefresh range of 43.00-72.00 Hz
(II) NV(0): Estimated virtual size for aspect ratio 1.2593 is 1280x1024
(II) NV(0): Clock range: 12.00 to 400.00 MHz
(II) NV(0): Not using default mode "640x350" (hsync out of range)
(II) NV(0): Not using default mode "320x175" (hsync out of range)
(II) NV(0): Not using default mode "640x400" (hsync out of range)
(II) NV(0): Not using default mode "320x200" (hsync out of range)
(II) NV(0): Not using default mode "720x400" (hsync out of range)
(II) NV(0): Not using default mode "360x200" (hsync out of range)
(II) NV(0): Not using default mode "640x480" (hsync out of range)
(II) NV(0): Not using default mode "320x240" (hsync out of range)
(II) NV(0): Not using default mode "640x480" (hsync out of range)
(II) NV(0): Not using default mode "320x240" (hsync out of range)
(II) NV(0): Not using default mode "640x480" (hsync out of range)
(II) NV(0): Not using default mode "320x240" (hsync out of range)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "400x300" (hsync out of range)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "400x300" (hsync out of range)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "400x300" (hsync out of range)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "400x300" (hsync out of range)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "400x300" (hsync out of range)
(II) NV(0): Not using default mode "1024x768" (hsync out of range)
(II) NV(0): Not using default mode "512x384" (hsync out of range)
(II) NV(0): Not using default mode "1024x768" (hsync out of range)
(II) NV(0): Not using default mode "512x384" (hsync out of range)
(II) NV(0): Not using default mode "1024x768" (hsync out of range)
(II) NV(0): Not using default mode "512x384" (hsync out of range)
(II) NV(0): Not using default mode "1024x768" (hsync out of range)
(II) NV(0): Not using default mode "512x384" (hsync out of range)
(II) NV(0): Not using default mode "1024x768" (hsync out of range)
(II) NV(0): Not using default mode "512x384" (hsync out of range)
(II) NV(0): Not using default mode "1152x864" (hsync out of range)
(II) NV(0): Not using default mode "576x432" (hsync out of range)
(II) NV(0): Not using default mode "1280x960" (hsync out of range)
(II) NV(0): Not using default mode "640x480" (hsync out of range)
(II) NV(0): Not using default mode "1280x960" (hsync out of range)
(II) NV(0): Not using default mode "640x480" (hsync out of range)
(II) NV(0): Not using default mode "1280x1024" (hsync out of range)
(II) NV(0): Not using default mode "640x512" (hsync out of range)
(II) NV(0): Not using default mode "1280x1024" (hsync out of range)
(II) NV(0): Not using default mode "640x512" (hsync out of range)
(II) NV(0): Not using default mode "1280x1024" (hsync out of range)
(II) NV(0): Not using default mode "640x512" (hsync out of range)
(II) NV(0): Not using default mode "1600x1200" (width too large for virtual size)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "1600x1200" (width too large for virtual size)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "1600x1200" (width too large for virtual size)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "1600x1200" (width too large for virtual size)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "1600x1200" (width too large for virtual size)
(II) NV(0): Not using default mode "800x600" (hsync out of range)
(II) NV(0): Not using default mode "1792x1344" (width too large for virtual size)
(II) NV(0): Not using default mode "896x672" (hsync out of range)
(II) NV(0): Not using default mode "1792x1344" (width too large for virtual size)
(II) NV(0): Not using default mode "896x672" (hsync out of range)
(II) NV(0): Not using default mode "1856x1392" (width too large for virtual size)
(II) NV(0): Not using default mode "928x696" (hsync out of range)
(II) NV(0): Not using default mode "1856x1392" (width too large for virtual size)
(II) NV(0): Not using default mode "928x696" (hsync out of range)
(II) NV(0): Not using default mode "1920x1440" (width too large for virtual size)
(II) NV(0): Not using default mode "960x720" (hsync out of range)
(II) NV(0): Not using default mode "1920x1440" (width too large for virtual size)
(II) NV(0): Not using default mode "960x720" (hsync out of range)
(II) NV(0): Not using default mode "832x624" (hsync out of range)
(II) NV(0): Not using default mode "416x312" (hsync out of range)
(II) NV(0): Not using default mode "1152x768" (hsync out of range)
(II) NV(0): Not using default mode "576x384" (hsync out of range)
(II) NV(0): Not using default mode "1400x1050" (width too large for virtual size)
(II) NV(0): Not using default mode "700x525" (hsync out of range)
(II) NV(0): Not using default mode "1400x1050" (width too large for virtual size)
(II) NV(0): Not using default mode "700x525" (hsync out of range)
(II) NV(0): Not using default mode "1600x1024" (width too large for virtual size)
(II) NV(0): Not using default mode "800x512" (hsync out of range)
(II) NV(0): Not using default mode "1920x1440" (width too large for virtual size)
(II) NV(0): Not using default mode "960x720" (hsync out of range)
(II) NV(0): Not using default mode "2048x1536" (width too large for virtual size)
(II) NV(0): Not using default mode "1024x768" (hsync out of range)
(II) NV(0): Not using default mode "2048x1536" (width too large for virtual size)
(II) NV(0): Not using default mode "1024x768" (hsync out of range)
(II) NV(0): Not using default mode "2048x1536" (width too large for virtual size)
(II) NV(0): Not using default mode "1024x768" (hsync out of range)
(II) NV(0): Not using driver mode "800x600" (hsync out of range)
(II) NV(0): Not using driver mode "640x480" (hsync out of range)
(II) NV(0): Not using driver mode "1280x1024" (hsync out of range)
(II) NV(0): Not using driver mode "1024x768" (hsync out of range)
(II) NV(0): Not using driver mode "1024x768" (hsync out of range)
(II) NV(0): Not using driver mode "832x624" (hsync out of range)
(II) NV(0): Not using driver mode "800x600" (hsync out of range)
(II) NV(0): Not using driver mode "1152x864" (hsync out of range)
(II) NV(0): Not using driver mode "640x480" (hsync out of range)
(II) NV(0): Not using driver mode "800x600" (hsync out of range)
(II) NV(0): Not using driver mode "1024x768" (hsync out of range)
(II) NV(0): Not using driver mode "1280x1024" (hsync out of range)
(II) NV(0): Not using driver mode "1280x1024" (hsync out of range)
(WW) NV(0): Shrinking virtual size estimate from 1280x1024 to 640x480

For some kind of reason X dislikes my HSync and VertRefresh values, it
says it is using these values: